Theological term
Unbelief
9 sermons · All terms
Deuteronomy 1
Deuteronomy 1 opens Moses' first address to the second generation of Israel on the plains of Moab, a historical review designed to prepare the people for the conquest of the promised land. Moses rehearses four episodes: God's command to advance from Horeb, the appointment of judges, the rebellion at Kadesh Barnea rooted in unbelief, and the punishment that fell on the first generation. The central diagnostic is verse 32 — 'you did not believe the Lord your God' — which exposes unbelief as the taproot of Israel's grumbling, refusal, and covenant faithlessness. The sermon calls the New Covenant congregation to dwell on this history so as to be steadfast in the future, trusting the same God whose promises are yes and amen in Christ.
Exodus 17
Exodus 17 presents Israel's double failure at Rephidim: a murmuring complaint against Moses for lack of water, and then the subsequent victory over the Amalekites through Moses's upraised rod and Joshua's sword. The murmuring is exposed not merely as weakness but as theological insult — the question 'Is the Lord among us or not?' impugns the faithfulness of a God who has already split the sea, rained bread from heaven, and sworn to bring His people to the land of promise. The sermon draws out two counterbalancing lessons: the unrelenting faithfulness of God despite His people's unbelief, and the Reformed doctrine that divine sovereignty does not eliminate the use of means — Israel must both hold up the rod in dependence on God and swing the sword in disciplined obedience.
Is Your Faith a Borrowed Faith?
The narrative of Joash in 2 Chronicles 24 raises a searching question for every professing believer: is your faith genuinely your own, or have you been living on the borrowed spiritual capital of a godly mentor? Conrad Mbewe traces three lessons from the passage — the providential gift of godly role models, the dangerous possibility of a faith that is merely reflected rather than rooted, and the grace of God that erects barriers of conscience and prophetic warning along the road of unbelief. The sermon closes with a direct appeal: while godly influences remain within reach, now is the moment to examine whether your faith is a living reality wrought by the Spirit through regeneration, and if not, to come to Christ with all your brokenness.
2 Kings 6:24–7:20
The siege and deliverance of Samaria in 2 Kings 6:24–7:20 exposes both the devastating covenantal consequences of Israel's idolatry and the sovereign mercy of Yahweh who refuses to abandon His people. The cannibalism, famine, and political helplessness that afflict Samaria are not arbitrary calamities but the precise covenant curses of Leviticus 26 and Deuteronomy 28, visited upon a nation that had abandoned Yahweh for the gods of Canaan. God's deliverance comes not through royal power or military might but through four leprous outcasts, an unnamed servant, and a supernatural terror sent upon the Syrian army — instruments so unlikely that only God can receive the glory. The passage presses its hearers to trust the prophetic Word of God rather than political power, and to proclaim the good news they have received rather than remain silent.
The Healing of a Demon Possessed Boy
Matthew 17:14–23 sets a desperate father's plea for his demon-possessed son against the disciples' failure to cast out the demon, and Christ's authoritative word that immediately effects the cure. The sermon works through four movements: the request for mercy, the Lord's rebuke of faithless Israel and the demon, instruction on the nature and exercise of faith, and the second formal passion announcement of Matthew's Gospel. Throughout, the contrast between Christ's kingdom of mercy and the devil's kingdom of self-destruction frames both the evangelistic and pastoral applications: sinners are called to come to the sovereign Christ who alone delivers, and parents are urged never to despair of the conversion of any soul, pressing the atoning work of the cross upon their children.
The Rejection at Nazareth
Matthew 13:54–58 records the rejection of Jesus Christ in his hometown of Nazareth, where familiarity with his person produced not neutrality but active offense and opposition. The sermon traces the movement from initial astonishment at Christ's wisdom and mighty works to suspicion, critical questioning, and full-scale rejection — demonstrating that curiosity about Christ, apart from saving faith, inevitably hardens into hostility. The passage is read through the lens of Isaiah 53:3, with Christ's dishonor in Nazareth understood as a fulfillment of the suffering servant's rejection. Hearers are pressed to reckon with whether they are with Christ or against him, warned that unbelief hardens with each exposure to the gospel, and called to believe on the Lord Jesus Christ while it is still the day of grace.
Joshua 18-21
Joshua 18–21 records the distribution of the remaining tribal allotments, the establishment of cities of refuge, the assignment of Levitical cities, and a concluding theological summary of the entire book. The seven tribes' failure to claim their inheritance is exposed as unbelief and ingratitude, while Caleb and Joshua stand as models of faith that acts upon the promises of God. The cities of refuge illumine God's justice — distinguishing murder from manslaughter, protecting the innocent, and underscoring the sanctity of human life made in God's image. The passage closes with the theological heart of the book: not one word of God's promise failed, a principle that extends through the new covenant to the final defeat of all Christ's enemies and the rest that awaits the people of God.
Covenant Faithfulness and the Lord's Victory at Jericho
Joshua 5:1–6:5 brings Israel to the threshold of Canaan for two covenant rites — circumcision and Passover — before the campaign against Jericho begins. The uncircumcised second generation receives the covenant sign, qualifying them for the Passover meal and for life in the land God swore to give their fathers. The cessation of manna as Israel eats the land's produce is treated not as the end of divine care but as its continuation through ordinary providence. The passage climaxes with the pre-incarnate Christ appearing as commander of the Lord's army, commissioning Joshua with the promise that Jericho is already given — a promise to be received by faith, not taken by military prowess.
A Potential Danger Identified
Deuteronomy 7:17–26 identifies a specific temptation that would face Israel on the threshold of Canaan: the temptation to doubt God's faithfulness when confronted by nations greater than themselves. Drawing on the failure of the first generation recorded in Numbers 13–14 and Deuteronomy 1, the exposition works through Moses' five-part antidote to that doubt — a corrective, an exhortation to remember the Exodus, an encouragement from God's provision, a reminder of God's character, and a repeated command to destroy idols utterly. The cross-covenantal application presses believers to resist unbelief by rehearsing what God has already accomplished in Christ, and to cultivate a hatred of sin that guards against the gradual snare of idolatry.